Open Facebook and log in to your account
Go to your profile
Select the Friends tab
Click the three dots or Edit Privacy option
Choose Edit Privacy
Find Who can see your friends list?
Select Only me or your preferred privacy setting
Save the changes
On the Facebook app, tap the menu, then Settings & privacy, then Settings
Go to Privacy settings
Find the friends list privacy option
Set it to Only me or your preferred audience
Review your profile to confirm the friends list is hidden